In:
Chemical Science, Royal Society of Chemistry (RSC), Vol. 14, No. 34 ( 2023), p. 9041-9047
Abstract:
As an innovative form of stimulus-response materials, organic–inorganic hybrid phase transition materials have become a wonderful contender in the field of functional electronic equipment due to their versatile structure, intensive functions and straightforward preparation. However, the targeted regulation and optimization of the electrical/optical response, along with the establishment of regular structure–performance relationships, pose significant challenges in meeting the diverse demands of practical applications over an extended period. Herein, we conducted a systematic investigation into the role of lattice void occupancy in regulating phase transition temperature ( T p ) and related optical/electrical bistability. By taking hybrid material [TMEA][Cd(SCN) 3 ] featuring a flexible ammonium cation [TMEA] + (TMEA = ethyltrimethylammonium) as the prototype, we successfully synthesized three phase transition materials, namely [DEDMA][Cd(SCN) 3 ], [TEMA] [Cd(SCN) 3 ] and [TEA] [Cd(SCN) 3 ] (DEDMA = diethyldimethylammonium, TEMA = triethylmethylammonium, and TEA = tetraethylammonium), and the excellent regulation of the physical properties of these compounds was achieved through subtle engineering of void occupancy. More strikingly, [TEA] [Cd(SCN) 3 ] exhibits remarkable bista ble properties in terms of dielectric and nonlinear optical responses (with second-harmonic generation intensity reaching 2.5 times that of KDP). This work provides a feasible avenue to reasonably customise organic–inorganic hybrid phase transition materials and finely adjust their intriguing functionalities.
Type of Medium:
Online Resource
ISSN:
2041-6520
,
2041-6539
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2023
detail.hit.zdb_id:
2559110-1
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